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barium as a mineralizer in cement clinker formation

INFLUENCE OF BARIUM OXIDE ADDITIONS ON

2017-1-13 · By incorporation of barium ions into clinker minerals, the cement prepared from this clinker could shield different types of radiation. Another reason to study the influence of barium on the formation and properties of Portland clinker is the use of alternative fuels and raw materials in manufacturing Portland cement.

The Influence of Barium Sulphate and Barium Carbonate

2016-1-1 · The work is focused on influence of barium ions on the formation of Portland clinker and its properties. As a source of barium, barium sulphate and barium carbonate were added to raw meal. Clinkers and cements with a different amount of barium were prepared and the effect of barium on the clinker and cement properties respectively was studied.

The Influence of Barium Compounds on the Formation of ...

Portland clinker is thanks to its large-scale production a continuously studied topic. Clinker, or Portland cement, is used for construction purposes or for insulation and special applications. One of these special applications could be shielding of different types of radiation by making use of the content of barium ions. The present article examines the influence of barium oxide on the ...

(PDF) The Influence of Barium Sulphate and Barium ...

As a source of barium oxide, barium sulphate (baryte) was used in amount of 4% calculated to BaO in the clinker. Barium incorporated in clinker inhibits formation of alite; therefore, lime ...

Mineralization in Cement Clinker Process

2020-7-16 · CaF2, as mineralizer improves the rate of clinker formation by another reaction pathway involving the formation of new, intermediate minerals (e.g. 3C3S.CaF2) at

Heat Liberation of Barium Cements as a Background of

The strength of cement and its setting time will decrease significantly, if the content of BaO in clinker is high (about 47%). This cement is characterized by a low water requirement and heat liberation. Properties of cement with a low content of barium oxide (5.5%) are close to the properties of the standard Portland cement.

Hydration of clinkers doped with baryte with and without ...

2019-8-7 · Barium has been reported to exhibit a mineralizing effect on the formation of cement clinkers [ 3, 5, 6 ]. Substitution of Ca 2+ by Ba 2+ ions in clinker phases can change the crystal lattice of the phase; barium ions are nearly half the size bigger than calcium ones (1.43 Å and 1.06 Å, respectively) [ 3 ].

Use of mineralizer in black meal process for improved ...

Use of mineralizer in black meal process for improved clinkerization and conservation of energy2. ... a need for energy conservation which could be rapidly and economically accomplished by promoting the clinker formation at lower temperature. The use of fluxes for lowering the melting point of the raw mix is an important measure to save energy ...

Use of mineralizer in black meal process for improved ...

1998-8-1 · Compounds, such as CaSO 4, CaF 2, and a mixture of the two, when added in economical ranges, provided encouraging results. Figure 3 shows the changes in burnability, expressed by the free lime content, caused by the presence of mineralizer mixed with raw mix. A free lime value of less than 2%, which corresponds to a well-burnt clinker, could be obtained by burning RM-1 between

Optimal fluorite/gypsum mineralizer ratio in Portland ...

cement (puzzolans and fillers) to lower the clinker/ cement ratio (14), alternative cements (10, 15, 16), and the development of high-performance concrete (17), among others. The use of mineralizers has proven to be a very good option in this regard, but it is not yet fully understood. Mineralization accelerates the formation pro-

use of barium oxide as mineralizer in cement industry

The effect of SiO 2 additions on barium aluminate cement of SiO2 additions on barium aluminate cement formation system barium oxide . ... Aluminum Oxide 60-120 Aluminum Silicate Barium Calcine,Carbonate 72 Material Description Cement, Clinker 75-95 Cement, Rock ... use of barium oxide as mineralizer in cement industry. use of barium oxide as ...

The Influence of Barium Sulphate and Barium Carbonate

The work is focused on influence of barium ions on the formation of Portland clinker and its properties. As a source of barium, barium sulphate and barium carbonate were added to raw meal.

The Influence of Barium Compounds on the Formation of ...

Portland clinker is thanks to its large-scale production a continuously studied topic. Clinker, or Portland cement, is used for construction purposes or for insulation and special applications. One of these special applications could be shielding of different types of radiation by making use of the content of barium ions. The present article examines the influence of barium oxide on the ...

(PDF) The Influence of Barium Sulphate and Barium ...

As a source of barium oxide, barium sulphate (baryte) was used in amount of 4% calculated to BaO in the clinker. Barium incorporated in clinker inhibits formation of alite; therefore, lime ...

Refractory concrete based on barium aluminate–barium ...

2005-1-1 · Refractory concrete based on barium aluminate–barium zirconate cements for steel-making industries. ... when CaO in the cement clinker is partially substituted by MgO . This is due to the formation of magnesium aluminate spinel which results in improved slag resistance and

Influence of Nano-Barium Sulfate Agglomeration on ...

2015-11-27 · hydrous clinker phases and the formation of hydration products 34].[Nano-barium sulfate filled cement pastes had the highest combined water contents as compared to OPC and limestone filled samples. Moreover, n- the i crease of the nano-barium sulfate content resulted in higher combined water contents at all addition levels, while Figure 1.

Synthesis of a mineralizing agent for Portland cement from ...

The resulting fluorite with a high mass concentration of 73.9% CaF 2 makes it possible to reduce the clinker formation temperature, which increases the energy efficiency of obtaining Portland cement. The technological process for removing alkaline components from the product will reduce the likelihood of destructive processes in concrete caused ...

MINERALIZER FOR CALCIUM SULFOALUMINATE

The present invention relates to a method for the production calcium sulfoaluminate (belite, ferrite) ternesite clinker using fluxes/mineralizers comprising the following steps - providing a raw meal comprising at least sources of CaO, SiO 2, Al 2 O 3, SO 3 - sintering the raw meal in a kiln at >1200 to 1400 °C to provide a clinker, - cooling the clinker, wherein a mineralizer comprising at ...

Effects of the incorporation of aluminum fluoride ...

2015-10-15 · clinker mineralized with calcium fluoride according to the literature. These results indicate a possible use of aluminum fluoride as mineralizer in the manufacturing of Portland cement clinker. Originality The use of aluminum fluoride as mineralizer in the cement clinker manufacturing is not reported so far at industrial level.

View of Optimal fluorite/gypsum mineralizer ratio in ...

The tests that showed the lowest free CaO (tests 6, 2, and 5) are highlighted in Figures 1, 2, and 3.These formulations had a CaF 2 /CaSO 4.2H 2 O ratio of 2/15. The high fluorite content (0.75 and 0.5%) facilitated the reaction of C 2 S with CaO to form C 3 S. . In Figure 2 and Table 3, when comparing the reference at 1300 °C (without mineralization) with test 2 (CaF 2 /CaSO 4.2H 2 O=2/15 ...

Influence of Barium Oxide Additions on Portland Clinker

Since barium is very efficient in shielding different types of radiation, it can be assumed that the radiation shielding capability of cement can be improved by incorporation of barium. This work deals with the influence of barium oxide, added in the form of barium carbonate and sulphate, on the formation and properties of Portland clinker.

Use of mineralizer in black meal process for improved ...

1998-8-1 · OSTI.GOV Journal Article: Use of mineralizer in black meal process for improved clinkerization and conservation of energy

Influence of Nano-Barium Sulfate Agglomeration on ...

2015-11-27 · hydrous clinker phases and the formation of hydration products 34].[Nano-barium sulfate filled cement pastes had the highest combined water contents as compared to OPC and limestone filled samples. Moreover, n- the i crease of the nano-barium sulfate content resulted in higher combined water contents at all addition levels, while Figure 1.

Effect of Slag on Expansion of Alite-Calcium Barium ...

【Abstract】 The influences of slag on the expansion of alite-calcium barium sulphoaluminate cement were studied.The experimental results indicated that the formation of ettringite and Ba-bearing ettringite are the main expansion sources of alite-calcium barium sulphoaluminate cement clinker with only gypsum.In addition to the ettringite and Ba-bearing ettringite,the Mg(OH) 2 crystal ...

2 CEMENTS 3 4 P.M. Carmona-Quiroga, M.T. Blanco-Varela

2016-5-26 · 35 Barium carbonate is no unknown to the cement industry, for it may form part of the ... 55 effect on the resistance due to the formation of Ca monocarboaluminate [9]. 56 57 Sulfate attack, one of the causes of deterioration in portland cement mortar and ... 62 cement [15], processed from clinker with a low C3A content (from 0 to 5 % in OPC).

Cement Clinker Based on Industrial Waste Materials

2020-6-8 · Three samples of clinker were obtained (CL1, CL2 and CL3) based on the content of free lime consistent with the maximum value. The first type of clinker CL1, from RM1, was produced at the lowest temperature (about 1000°C). Due to the high content of CS in RM1 (59%) which acted as a mineralizer, the liquid phase formation seems to take

Study the Critical Role of Admixtures in Cement

2013-12-24 · cing the final quality of cement. Keywords: Cement Properties, Cassiterite, Burnability, Hydration. 1. Introduction . Cement has a wide range of uses like in pottery, con-struction and manufacturing; all of them need a high- potential of energy consumption. Because of that, scien-tists and manufacturers use admixtures to achieve a bal-

[PDF] UTILIZATION OF BASALT ON THE CLINKERIZATION

This study comprises the effect of basalt as a flux and mineralizer on the formation of Portland cement clinker, where it used instead of sand, iron and clay at constant lime saturation factor. Three mixtures were prepared, the first formed from original raw materials, in second mixture the sand and iron replaced by basalt and in the third mixture the clay, sand and iron replaced by basalt.

What are the Roles of Gypsum in Cement Production ...

Gypsum can be used as a raw material, mineralizer, retarder and activator in cement plants. Among the components, SO 2 is used to balance the sulfur-alkali ratio in the calcining of clinker and improve the calcining operation and the service life of refractory materials. Roles of gypsum: 1. As a raw material, it can be used in the production of CSA cement, slag-gypsum cement, gypsum bauxite ...

View of Optimal fluorite/gypsum mineralizer ratio in ...

The tests that showed the lowest free CaO (tests 6, 2, and 5) are highlighted in Figures 1, 2, and 3.These formulations had a CaF 2 /CaSO 4.2H 2 O ratio of 2/15. The high fluorite content (0.75 and 0.5%) facilitated the reaction of C 2 S with CaO to form C 3 S. . In Figure 2 and Table 3, when comparing the reference at 1300 °C (without mineralization) with test 2 (CaF 2 /CaSO 4.2H 2 O=2/15 ...